As new cases are reported, our maps and illustrations show the spread of the virus and how infections can run through a community.

Measles cases in West Texas are still rising two months after the outbreak began. Local public health officials say they expect the outbreak to last for at least several more months and the case number is likely an undercount.

As the outbreak rages, unproven remedies like cod liver oil are being distributed free by some doctors. Families are lining up for them.